<template>
  <div>
    <!-- 2. 为ECharts准备一个具备大小（宽高）的Dom -->
    <div id="main" style="max-width: 700px; height: 400px"></div>
  </div>
</template>

<script>
import * as echarts from "echarts" 
export default {
  data() {
    return {
      option: {
        title: {
          text: "用户来源",
        },
        tooltip: {
          trigger: "axis",
          axisPointer: {
            type: "cross",
            label: {
              backgroundColor: "#6a7985",
            },
          },
        },
        legend: {
          data: ["Email", "Union Ads", "Video Ads", "Direct", "Search Engine"],
        },
        toolbox: {
          feature: {
            saveAsImage: {},
          },
        },
        grid: {
          left: "3%",
          right: "4%",
          bottom: "3%",
          containLabel: true,
        },
        xAxis: [
          {
            type: "category",
            boundaryGap: false,
            data: ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"],
          },
        ],
        yAxis: [
          {
            type: "value",
          },
        ],
        series: [
          {
            name: "Email",
            type: "line",
            stack: "Total",
            areaStyle: {},
            emphasis: {
              focus: "series",
            },
            data: [120, 132, 101, 134, 90, 230, 210],
          },
          {
            name: "Union Ads",
            type: "line",
            stack: "Total",
            areaStyle: {},
            emphasis: {
              focus: "series",
            },
            data: [220, 182, 191, 234, 290, 330, 310],
          },
          {
            name: "Video Ads",
            type: "line",
            stack: "Total",
            areaStyle: {},
            emphasis: {
              focus: "series",
            },
            data: [150, 232, 201, 154, 190, 330, 410],
          },
          {
            name: "Direct",
            type: "line",
            stack: "Total",
            areaStyle: {},
            emphasis: {
              focus: "series",
            },
            data: [320, 332, 301, 334, 390, 330, 320],
          },
          {
            name: "Search Engine",
            type: "line",
            stack: "Total",
            label: {
              show: true,
              position: "top",
            },
            areaStyle: {},
            emphasis: {
              focus: "series",
            },
            data: [820, 932, 901, 934, 1290, 1330, 1320],
          },
        ],
      },
    }
  },
  created() {},
  // mounted生命周期可以获取到dom节点
  mounted() {
    // 初始化echarts
    var myChart = echarts.init(document.getElementById("main"))

    //请求数据
    this.$store.dispatch("getReports").then(res=>{
      console.log(res);
      if (res.meta.status === 200) {
      this.$message.success(res.meta.msg)
      let data = res.data
      // 头部的内容
      this.option.legend = data.legend
      // 这里要跟头部的name和legend的内容一样才能出来
      this.option.series = data.series
      // 底部的日期
      this.option.xAxis[0].data = data.xAxis[0].data
      this.option.yAxis = data.yAxis
      myChart.setOption(this.option)
    }
    // 根据浏览器大小进行缩放
    window.onresize = function () {
      myChart.resize()
    }
    })
    
  },
  methods: {},
}
</script>

<style lang="scss" scoped></style>
